.mask_wrap {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  z-index: 8;
  background: rgba(0, 0, 0, 0.65);
  animation: mask_in .3s linear;
}

@keyframes mask_in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
